I don't think I have ever seen people more divided over politics than I do now. I agree that's because it's not just about politics but about core viewpoints. And viewpoints seem to be becoming more and more extreme.
OP, sorry to say, you might want to think about whether or not you wish to stay in this relationship. Are other parts of your relationship so good that you would be unhappy without him? Or does this difference in world views overshadow everything else. If it still means a lot to you to be with him, then avoid the subject of politics, especially Brexit. If you could live more or less happily without him and would like the chance to find a more like-minded partner, then, IMO, it's time to start thinking about moving on.
Angela Rayner cleared by HMRC. What a coincidence!
Support and friendship for those whose lives have been affected by estrangement.

